Otis, I think it depends on your use case. Some use cases are extremely dependent on locality and latency, so they will major compact any region the balancer has moved. Some people follow the HFile count and will trigger a major when there are x amount of files. Others will just follow best practices and do it daily. Some do very little writes and only compact once a week.
On Wed, Dec 12, 2012 at 3:15 PM, Otis Gospodnetic < [email protected]> wrote: > Hello, > > What are the main metrics/signals people use/look at to say "OK, I really > need to do a major compaction now", other than "hm, performance is not > good, let's try major compaction tonight"? > > Thanks, > Otis > -- > HBASE Performance Monitoring - http://sematext.com/spm/index.html > Search Analytics - http://sematext.com/search-analytics/index.html > -- Kevin O'Dell Customer Operations Engineer, Cloudera
